Wow, those are cool! Something that is really cool about this: In the pic of the marbles on the green mat... the one on the right with the yellow and blue on white... that one is a not-so-common marble made by the Kokomo Glass Company in Kokomo Indiana. That one didn't stray very far from home! The middle one in that picture looks like it might be one too, and in an odd color combo. More pics of it?
Other marbles that pop out as worthy of more pictures are the blue and yellow one in your hand and in the first pic of the bagged marbles, there is one in the bottom right corner. Those might be good ones, more pics of different views of them would help in their ID.
The rest look like they are more common old marbles made in America from the turn of the century to the 50s or so.
Thanks for sharing!